Anti-following-rotation tool for assembling and screwing off-highway dumper suspension

Abstract

The utility model discloses an anti-following-rotation tool for assembling and tightening a suspension of an off-highway dumper, which comprises a U-shaped clamping plate, an ejector block is mounted in the clamping plate, the clamping plate is used for being clamped on a workpiece, and the ejector block is used for ejecting the workpiece; the handle is installed at one end of the clamping plate, and the handle can be rotated to extrude or loosen the ejector block and enable the ejector block to be in contact with or separated from the workpiece; the opening swing arms are fixed to the clamping plate, and opening grooves used for preventing the bolts or the nuts from rotating along with the opening swing arms are formed in the opening swing arms. According to the following rotation preventing tool for assembling and tightening the suspension of the off-highway dumper, in the assembling and tightening process, following rotation of a nut or a bolt can be prevented, it is guaranteed that the product quality is reliable, and the process safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to an anti-rotation tool for tightening the suspension assembly of off-road dump trucks, belonging to the technical field of dump truck assembly. Background Art

[0002] During the assembly process of off-road dump trucks, it is necessary to perform torque setting operations on the bolts and nuts of the key suspension parts. Conventionally, an electric tightening machine is used. However, during the process of tightening bolts or nuts, the other end usually rotates (follows the rotation), which will cause the torque to never reach the target value, and continuous rotation will damage the tool and also result in the torque of the fasteners not meeting the standard, making the product unqualified.

[0003] Since the workpiece itself has no hard limit structure to restrict the rotation of bolts or nuts, it is necessary to use an anti-rotation tool for hard limit to prevent bolts or nuts from following the rotation during the tightening process. The existing anti-rotation tools have poor assembly quality and low efficiency. Summary of the Invention

[0004] Aiming at the problems existing in the above-mentioned prior art, the utility model provides an anti-rotation tool for tightening the suspension assembly of off-road dump trucks, which improves the assembly quality, ensures the target torque, and reduces the labor intensity of workers by adapting to an electric tightening machine.

[0005] In order to achieve the above purpose, an anti-rotation tool for tightening the suspension assembly of off-road dump trucks adopted by the utility model includes:

[0006] A clamping plate, the clamping plate is U-shaped, a top block is installed inside the clamping plate, the clamping plate is used to clamp on the workpiece, and the top block is used to tightly press the workpiece;

[0007] A handle, the handle is installed at one end of the clamping plate, rotating the handle can squeeze or loosen the top block and make the top block contact or disengage from the workpiece;

[0008] An open swing arm, a plurality of open swing arms are fixed on the clamping plate, and an open slot for preventing the rotation of bolts or nuts is provided on the open swing arm.

[0009] In some embodiments, the top block is installed inside the clamping plate through a stud.

[0010] In some embodiments, waist-shaped holes are symmetrically provided on both sides of the clamping plate, the middle part of the stud is connected to the top block, and both ends are installed in the waist-shaped holes of the clamping plate and can slide along the waist-shaped holes.

[0011] In some embodiments, the handle is a 7-shaped handle.

[0012] In some embodiments, the handle is a 7-shaped bolt, and an internal threaded hole is opened on the clamping plate.

[0013] In some embodiments, the shape of the opening groove matches the shape of the bolt head or nut.

[0014] In some embodiments, a plurality of the opening swing arms are installed on the same side of the clamping plate through fixing bolts.

[0015] In some embodiments, the thickness of one end of the opening swing arm provided with the opening groove is greater than the thickness of the other end of the opening swing arm.

[0016] Compared with the prior art, the anti-rotation tooling for non-road dump truck suspension assembly tightening in the present utility model can prevent the nut or bolt from rotating during the assembly tightening process, ensuring reliable product quality and reducing the process safety risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is the front view of the present utility model;

[0020] Figure 3 is the top view of the present utility model;

[0021] Figure 4 is the right view of the present utility model;

[0022] Figure 5 is the schematic diagram of the use state of the present utility model Figure 1 ;

[0023] Figure 6 is the schematic diagram of the use state of the present utility model Figure 2 ;

[0024] In the figure: 1, handle; 2, top block; 3, stud; 4, clamping plate; 5, opening swing arm one; 6, opening swing arm two; 7, fixing bolt one; 8, fixing bolt two; 9, electric tightening machine; 10, nut one; 11, nut two; 12, opening groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the objectives, technical solutions, and advantages of the present utility model clearer, the technical solutions of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. Without conflict, the technical features in the embodiments of this application and the embodiments can be combined with each other.

[0026] As Figures 1-6 shown, an anti-rotation tooling for non-road dump truck suspension assembly tightening includes a clamping plate 4, a handle 1, and an opening swing arm;

[0027] The clamping plate 4 is U-shaped, and a top block 2 is installed inside the clamping plate 4. The clamping plate 4 is used to clamp on the workpiece, and the top block 2 is used to tightly press the workpiece; the handle 1 is installed at one end of the clamping plate 4. Rotating the handle 1 can squeeze or loosen the top block 2 and make the top block 2 contact or disengage from the workpiece;

[0028] A plurality of the opening swing arms are fixed on the clamping plate 4, and an opening groove 12 for preventing the bolt or nut from rotating is provided on the opening swing arm.

[0029] In some embodiments, as Figure 1 、 Figure 2 shown, the top block 2 is installed inside the clamping plate 4 through a stud 3. Specifically, waist-shaped holes are symmetrically provided on both sides of the clamping plate 4. The middle part of the stud 3 is connected to the top block 2, and both ends of the stud 3 are installed in the waist-shaped holes of the clamping plate 4. The stud 3 can slide in the waist-shaped holes and drive the top block 2 to slide inside the clamping plate 4.

[0030] In some embodiments, as Figure 1 、 Figure 2 shown, the handle 1 is a 7-shaped handle for convenient rotation. By rotating the 7-shaped handle, the function of squeezing and loosening the top block 2 is achieved. Specifically, the handle 1 can be a 7-shaped bolt, and an internal threaded hole matching the 7-shaped bolt is provided on the clamping plate 4. Rotating the 7-shaped bolt clockwise can make the end of the bolt squeeze the top block 2, and rotating counterclockwise can make the end of the 7-shaped bolt disengage from the top block 2. Since the top block 2 is slidably installed in the waist-shaped hole of the clamping plate 4 through the stud 3, under the squeezing action of the 7-shaped bolt, the top block 2 can slide and squeeze the workpiece.

[0031] In some embodiments, as Figure 1 、 Figure 2 shown, the shape of the opening groove 12 matches the shape of the bolt head or nut, which is convenient for clamping the bolt or nut and ensuring that the bolt or nut will not rotate following the tightening action during the assembly tightening process.

[0032] In some embodiments, as Figures 1-4As shown, multiple said opening swing arms are installed on the same side of the clamping plate 4 through fixing bolts, fastened by the fixing bolts, with convenient installation. And according to the usage requirements, multiple opening swing arms can be set to correspond to multiple bolts or nuts to play a role in preventing rotation.

[0033] In some embodiments, as Figure 4 shown, the thickness of one end of the opening swing arm where the opening groove 12 is provided is greater than that of the other end, which improves the structural strength of the opening swing arm and enables the opening groove 12 to effectively contact the bolt or nut at the same time.

[0034] In the suspension assembly, taking the electric tightening machine to tighten the nut and the opening swing arm limiting bolt as an example, the specific usage process is as follows:

[0035] First, pre-install (not fully tighten) the opening swing arm one 5 through the fixing bolt one 7 on the clamping plate 4, and pre-install (not fully tighten) the opening swing arm two 6 through the fixing bolt two 8; then install the clamping plate 4 corresponding to the workpiece, and make the top block 2 extrude and tightly press the workpiece by rotating the handle 1. Then, make the opening grooves 12 on the opening swing arm one 5 and the opening swing arm two 6 correspondingly contact the screw heads of the screw one and the screw two to be tightened, and tighten the fixing bolt one 7 and the fixing bolt two 8 (at this time, the opening swing arm one 5 and the opening swing arm two 6 are correspondingly fixed and limited to the screw heads of the screw one and the screw two);

[0036] Then, tighten the nut one 10 on the screw one and the nut two 11 on the screw two in sequence through the electric tightening machine 9. During the process of the electric tightening machine 9 tightening the nut, the opening swing arm can effectively limit the screw one and the screw two to prevent the screw from rotating. Similarly, in the actual usage process, the screw can also be tightened through the electric tightening machine 9, and the nut can be limited by the opening swing arm. This anti-rotation tooling can be quickly clamped on the workpiece to act as a hard limit, preventing the bolt or nut from rotating during tightening. After tightening, the handle is rotated to relieve the force, without jamming, which is convenient for disassembly.

[0037] The anti-rotation tooling for the suspension assembly tightening of the non-road dump truck of the present utility model can meet the fastening requirements of bolts or nuts with a spacing of 65 mm on the product. By adjusting the rotation of the 7-shaped bolt, the top block in the clamping plate can be extruded or loosened, so that while the anti-rotation tooling is not jammed, the bolt and nut can be limited and prevented from rotating, achieving the effect of the target torque.

[0038] In addition, those skilled in the art can understand that although some embodiments described herein include certain features contained in other embodiments rather than other features, the combination of the features of different embodiments also means being within the protection scope of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved in this application.

Claims

1. An anti-rotation tooling for the tightening of the non-road dump truck suspension assembly, characterized in that, Comprising: A pallet (4), the pallet (4) is U-shaped, a top block (2) is installed inside the pallet (4), the pallet (4) is used to be stuck on the workpiece, and the top block (2) is used to tightly press the workpiece; A handle (1), the handle (1) is installed at one end of the pallet (4), rotating the handle (1) can squeeze or loosen the top block (2) and make the top block (2) contact or disengage from the workpiece; An open swing arm, a plurality of the open swing arms are fixed on the pallet (4), and an open slot (12) for preventing the bolt or nut from rotating is provided on the open swing arm.

2. The anti-rotation tooling for non-road dump truck suspension assembly tightening according to claim 1, characterized in that, The top block (2) is installed in the pallet (4) through a stud (3).

3. The anti-rotation tooling for non-road dump truck suspension assembly tightening according to claim 2, characterized in that, Waist-shaped holes are symmetrically provided on both sides of the pallet (4), the middle part of the stud (3) is connected to the top block (2), and both ends are installed in the waist-shaped holes of the pallet (4) and can slide along the waist-shaped holes.

4. A rotation prevention tool for non-road dump truck suspension assembly tightening according to claim 1, characterized in that, The handle (1) is a 7-shaped handle.

5. A rotation prevention tool for non-road dump truck suspension assembly tightening according to claim 4, characterized in that The handle (1) is a 7-shaped bolt, and an internal threaded hole is opened on the pallet (4).

6. The anti-rotation tooling for non-road dump truck suspension assembly tightening according to claim 1, wherein The shape of the open slot (12) matches the shape of the bolt head or nut.

7. A rotation prevention tool for non-road dump truck suspension assembly tightening according to claim 1, characterized in that, A plurality of the open swing arms are installed on the same side of the pallet (4) through fixing bolts.

8. The anti-rotation tooling for non-road dump truck suspension assembly tightening according to claim 1, characterized in that, The thickness of one end of the open swing arm where the open slot (12) is provided is greater than the thickness of the other end of the open swing arm.

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